Enhanced ISDN adapters

ISDN-EBIB Master adapter

Installation of EBIB system in the Abilis CPX is alternative to the EPIB/EXP/BEP one.

For its correct installation, refers to the section Rules for the correct placement of the EBIB adapters.

The ISDN EBIB Master adapter provides the following services and it has the following interfaces:

• 4 ISDN BRI S₀ or T₀ ports, RJ45-NT plugs, load termination externally applied.
• Each port can be set as S₀ or T₀ port.
• 4 HDLC controllers for D channel management.
• 8 HDLC controllers for data transmission on as many B channels.
• 2 housings for 2 ACBM modules, altogether 4 compressible voice channels.
• 1 PCM switch matrix with 64 full duplex channels, dedicated to the EBIB subsystem (Master+Slave1+Slave2+Slave3).
• 1 connector for connecting the adapter to the "EBIB bus".
• 1 module for call tone generation, if telecom or other devices do not provide them.
• ISA bus.

At the most, only one EBIB Master adapter can be placed in each Abilis CPX.

The EBIB system can accept up to 3 EBIB slave adapters connected to the EBIB Master one. The most complex configuration allowed, using the "full-optional" Slave adapters, is:

• 16 BRI S₀ or T₀ ports, altogether 32 B channels independently switchable.
• 16 D channels, each of them can support the "X25 over D channel" protocol.
• 32 HDLC controllers for data transmission on as many B channels.
• 16 compressible voice channels.

Figure 19. EBIB-Master Adapter.

If jumpers JP5 and JP6 are present, they don't have to be closed (installed).

The dip-switch SW1, as the figure shows, selects the 0xCE00 address: it must not be changed.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

The JP4 jumpers group allows plugging the suitable terminations on the "EBIB bus".

In order to avoid problems, always check that:

• EBIB adapters are plugged into the slots in the correct order, starting form the EBIB Master one.
• EBIB bus adapters are firmly fixed.
• EBIB bus cable is in perfect condition.
• Terminations are plugged in the right way.

On the contrary EBIB system could have irregular behaviours, such as:

• Noise, disturbs, rustles in voice communications.
• High error rate in data transmission.
• Not working at all of the whole system
• Inexplicable crashes of the CPX. Please remember that system crashes are automatically restored by the Watchdog and the messages "I: WDLIVE1" or "I: WDSTART" will be writte in the System Log at the subsequent system startup.

ISDN-EBIB Slave 1/2/3 Adapters

EBIB adapters numbering do not only refer to a jumper/switches configuration, but to a real hardware difference. The User should pay a lot of attention when requests a new adapter and installs it.

Even if it is possible, it highly recommended to avoid the intallation of adapters in discontinue order (e.g.. Master + Slave 2). Instructions about EBIB system configuration have been simplified by the sequential installation of the Slave adapters.

ISDN EBIB Slave adapter, available in the "voice" and "voice/data" versions, provides the following services and interfaces:

• 4 ISDN BRI S₀ or T₀ ports, RJ45-NT plugs, load termination externally applied.
• Each port can be set as S₀ or T₀ port.
• 4 HDLC controllers for D channel management.
• 8 HDLC controllers for data transmission on as many B channels (present only in the voice/data version).
• 2 housings for 2 ACBM modules, altogether 4 compressible voice channels.
• 1 connector for connecting the adapter to the "EBIB bus".
• ISA bus.

In each Abilis CPX it is not possible to install at the same time two or more EBIB Slave adapters with the same numbering.

Figure 20. EBIB-Slave adapter.

The dip-switch SW1, as the figure shows, selects the 0xCE00 address: it must not be changed.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

Internal lines selection depends only on the adapter itself and not on the others EBIB adapter in use. Usually the factory skips the adapter with the right setting for the JP3 jumper, however the user can quickly check it by reading the previous table.

In case of emergency, that is when in the installed EBIB system an intermediate adapter gets bad, it is possible to remove it, temporarily adapt the terminations and obviously modify the software configurations deactivating all its ports.

it is not recommended to use such configurations systematically, but only in case of real emergency.

ISDN-EPIB Master Adapters

Installation of EPIB/EXP/BEP system in the Abilis CPX is alternative to the EBIB one.

For its correct installation, refers to the section Rules for the correct placement of the EPIB/EXP/BEP adapters.

The ISDN EPIB Master adapter provides the following services and it has the following interfaces:

• 2 G.703 ports, 120 ohm balanced - ISDN PRI S_2m or T_2m, RJ45-NT plugs.
• Each port can be set as S_2m or T_2m port.
• 2 HDLC controllers for D channel management.
• 8 HDLC controllers for data transmission on as many B channels.
• 4 housings for 4 ACBM modules, altogether 8 compressible voice channels.
• 1 PCM switch matrix with 128 full duplex channels, dedicated to the EPIB subsystem EPIB/EXP/BEP (EPIB-Master + EPIB-Slave + EXP1 + EXP2 + BEP-Master + BEP-Slave 1 + BEP-Slave 2 + BEP-Slave 3).
• 1 connector for connecting the adapter to the "EPIB bus".
• 1 connector for connecting EPIB Master and BEP Master.
• ISA bus.

Figure 21. EPIB-Master Adapter.

If jumpers JP2-DMA are present, they don't have to be closed (installed).

The dip-switch SW1, as the figure shows, selects the 0xCC00 address: it must not be changed.

Jumpers JP3, JP4, JP5, JP6, JP7, JP8, JP9 always have to be installed as shown in figure; in the future, welded wires may replace them.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

The EPIB bus termination must be plugged in only if there are not other adapters connected to the EPIB bus.

ISDN-EPIB Slave Adapter

The ISDN EPIB Slave adapter provides the following services and it has the following interfaces:

• 2 G.703 ports, 120 ohm balanced - ISDN PRI S_2m or T_2m, RJ45-NT plugs.
• Each port can be set as S_2m or T_2m port.
• 2 HDLC controllers for D channel management.
• 8 HDLC controllers for data transmission on as many B channels.
• 4 housings for 4 ACBM modules, altogether 8 compressible voice channels.
• 1 PCM switch matrix with 128 full duplex channels, dedicated to the EPIB subsystem EPIB/EXP/BEP (EPIB-Master + EPIB-Slave + EXP1 + EXP2 + BEP-Master + BEP-Slave 1 + BEP-Slave 2 + BEP-Slave 3).
• 1 connector for connecting the adapter to the "EPIB bus".
• ISA bus.

Figure 22. EPIB-Slave Adapter.

The dip-switch SW1, as the figure shows, selects the 0xCC00 address: it must not be changed.

Jumpers JP3, JP4, JP5, JP7, JP8 always have to be installed as shown in figure; in the future, welded wires may replace them.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

The EPIB bus termination must be plugged in only if the adapter is the last one on the EPIB bus.

If the BEP Master is not connected to the EPIB master, the jumper block JP9 have to be installed as shown in figure, otherwise JP9/2 and JP9/3 have to be opened. The following table clearly shows the two different configurations:

EXP 1/2 (EPIB Expansions) Adapters

EXP adapters numbering doesn't refer only to a jumper/switches configuration, but to a real hardware difference. The User should pay a lot of attention when requests a new adapter and installs it.

EXP adapters, available in the "voice" and "voice/data" versions, provides the following services and interfaces:

• 8 HDLC controllers for data transmission on as many B channels (present only in the voice/data version).
• 4 housings for 4 ACBM modules, altogether 8 compressible voice channels.
• 1 connector for connecting the adapter to the "EPIB bus".
• ISA bus

Figure 23. EXP Adapter.

The dip-switch SW1, as the figure shows, selects the 0xCC00 address: it must not be changed.

Jumpers JP3, JP4, JP5, JP7, JP8 always have to be installed as shown in figure; in the future, welded wires may replace them.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

The EPIB bus termination must be plugged in only if the adapter is the last one on the EPIB bus.

ISDN-BEP Master (BRI Expansion for EPIB - Master) Adapter

Installation of BEP system requires the presence of the EPIB system; in fact, the BEP Master adapter must be connected to the EPIB Master one, through the suitable cable.

If the EPIB system is expanded by using the BEP Master, it won't be possible anymore to use the first port on the EPIB Slave.

The ISDN BEP Master adapter provides the following services and it has the following interfaces:

• 4 ISDN BRI S₀ or T₀ ports, RJ45-NT plugs, load termination externally applied.
• Each port can be set as S₀ or T₀ port.
• 4 HDLC controllers for D channel management.
• 1 connector for connecting the BEP Master to the EPIB Master.
• 1 connector for connecting the adapter to the "BEP bus".
• ISA bus.

At the most, only one BEP Master adapter can be placed in each Abilis CPX, the expansion is made connecting to it at most 3 BEP Slave.

The most complex allowed configuration of the EPIB/EXP/BEP system which uses the "full-optional" EXP adapters is:

• 3 G.703 ports, 120 ohm balanced - ISDN PRI S_2m or _T2m, RJ45-NT plugs.
• 3 D-PRI channels, each of them can support the "X25 over D channel" protocol.
• 32 HDLC controllers for data transmission on as many B channels.
• 16 housings for 16 ACBM modules, altogether 32 compressible voice channels.
• 16 D-BRI channels, each of them can support the "X25 over D channel" protocol.
• 16 BRI S₀ o T₀ ports, RJ45-NT plugs, load termination externally applied.
• Altogether 122 B channels independently switchable.

Figure 24. BEP-Master adapter.

The dip-switch SW1, as the figure shows, selects the 0xCE00 address: it must not be changed.

For correct jumpers/switches configuration, it also depends on the software one, refer to the chapter Ports numbering and adapters configuration.

The JP4 jumpers group allows plugging the suitable terminations on the "BEP bus".

In order to avoid problems, always check that:

• BEP adapters are plugged into the slots in the right order, starting form the BEP Master one.
• BEP bus connectors are firmly fixed.
• BEP bus cable is in perfect conditions.
• Terminations are plugged in the right way.

On the contrary the EPIB/EXP/BEP system could have irregular behaviours, such as:

• Noise, disturbs, rustles in voice communications.
• High error rate in data transmission.
• Not working at all of the whole system
• Inexplicable crashes of the CPX. Please remember that system crashes are automatically restored by the Watchdog and the messages "I: WDLIVE1" or "I: WDSTART" will be writte in the System Log at the subsequent system startup.

ISDN-BEP Slave 1/2/3 Adapters

BEP adapters numbering do not only refer to a jumper/switches configuration, but to a real hardware difference. The User should pay a lot of attention when requests a new adapter and installs it.

Even if it is possible, it highly recommended to avoid the intallation of adapters in discontinue order (e.g.. Master + Slave 2). Instructions about BEP system configuration have been simplified by the sequential installation of the Slave adapters.

ISDN BEP Slave adapter provides the following services and interfaces:

• 4 ISDN BRI S₀ or T₀ ports, RJ45-NT plugs, load termination externally applied.
• Each port can be set as S₀ or T₀ port.
• 4 HDLC controllers for D channel management.
• 1 connector for connecting the adapter to the "BEP bus".
• ISA bus.

In each Abilis CPX it is not possible to install at the same time two or more BEP Slave adapters with the same numbering.

Figure 25. BEP-Slave Adapter.

The dip-switch SW1, as the figure shows, selects the 0xCE00 address: it must not be changed.

Internal lines selection depends only on the adapter itself and not on the others BEP adapters in use. Usually the factory ships the adapter with the right setting for the JP3 jumper, however the user can quickly check it by reading the previous table.

In case of emergency, that is when in the installed BEP system an intermediate adapter gets bad, it is possible to remove it, temporarily adapt the terminations and obviously modify the software configurations deactivating all its ports.

It is not recommended to use such configurations systematically, but only in case of real emergency.

Rules for the correct placement of the EBIB adapters

For successfully run the EBIB system, the adapters must be plugged in following simple and precise rules. Particularly, they must be plugged sequentially starting from the Master one.

Violation of these rules will surely cause irregular behaviours, such as:

• Noise, disturbs, rustles in voice communications.
• High error rate in data transmission.
• Not working at all of the whole system
• Inexplicable crashes of the CPX. Please remember that system crashes are automatically restored by the Watchdog and the messages "I: WDLIVE1" or "I: WDSTART" will be writte in the System Log at the subsequent system startup.

The following figure gives some hints to follow and some to avoid.

Figure 26. Placement examples of the EBIB adapters.

Rules for the correct placement of the EPIB/EXP/BEP adapters

EPIB Master adapters, Slave and EXP can be installed in a more flexible way than the EBIB ones; however it is always needed to follow two rules:

• EPIB Master adapter has to be an outmost one.
• The "EPIB bus" termination must be installed only the other outmost adapter of the EPIB/EXP chain.

If the user wants to add BEP adapters, he has to connect the EPIP Master to the BEP Master through the suitable cable; for the BEP adapters, it is nedded to follow the same rules of the EBIB ones (see Rules for the correct placement of the EBIB adapters).

Explanations and examples made for the EBIB adapters can be applied to the BEP ones.

Violation of these rules will surely cause irregular behaviours, such as:

• Noise, disturbs, rustles in voice communications.
• High error rate in data transmission.
• Not working at all of the whole EPIB/EXP/BEP system
• Inexplicable crashes of the CPX. Please remember that system crashes are automatically restored by the Watchdog and the messages "I: WDLIVE1" or "I: WDSTART" will be writte in the System Log at the subsequent system startup.

The following figure gives some hints to follow and some to avoid.

Figure 27. Placement examples of EPIB/EXP/BEP adapters.

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